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Weight selection system for fitness training equipment

a weight selection and fitness training technology, applied in the direction of gymnastic exercise, muscle exercise devices, sport apparatus, etc., can solve the problems of easy loss of insertion pins, high production costs, and inability to achieve such precision, so as to avoid accumulation of thickness errors

Inactive Publication Date: 2009-11-10
CAO GUOFANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The present invention provides a link-connector mechanism, instead of a central stem, to work as the weight selection system and completely avoid the issue of accumulated thickness errors that plagued the industry.
[0010]Moreover, present invention contains a selection dial that allows the intuitive use of “dialing into” the correct weight as desired by users, resulting in simply and safe use of weight training equipment.

Problems solved by technology

Due to the accumulated thickness error of the weight plates, however, the top one or two holes on the weight plates oftentimes do not match up with the top one or two holes on the central stem.
This poses a problem for users when insertion of the insertion pin is taking place at the top portion of the weight stack, unless the weight plates are machined to a very tight tolerance, which requires costlier production to achieve such precision.
c. Insertion pin gets lost easily.

Method used

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  • Weight selection system for fitness training equipment
  • Weight selection system for fitness training equipment
  • Weight selection system for fitness training equipment

Examples

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Embodiment Construction

[0024]In FIGS. 1 and 2, the basic construction of present invention is shown, having one weight plate 100 matching one link-connector 105, constituting a weight unit, when selected.

[0025]FIG. 3 shows a stack of weight plates (four of them). There is a slot for the select pin 110 to insert through each weight plate 100 to be engaged to one link-connector 105.

[0026]FIG. 4 shows four weight plates 100 being selected, with four select pins 110 being engaged through the corresponding link-connector 105 when the pulling spring 115 is at its natural compressed state.

[0027]FIG. 5 shows when a particular select pin 110 is pulled out, that weight plate 100 is de-selected. The weight plates 100 above that particular pulled out select pin 110 are the desired weight. Pulling spring 115 must be pulled to extend from its natural compressed state, to disengage said select pin 110.

[0028]Within each weight plate, a guide-slot 106 is formed, so that a G-pin 116, attached to select pin 110, can maintai...

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PUM

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Abstract

A weight stack selection system for fitness equipment. A central stem having offset lateral movement is eliminated by the present invention. The select pin is easier for insertion to the selected desired weight due to the lack of accumulated thickness that plagued the industry. A moving block is used to intuitively select the desired weight, when said moving block is moved up and down on a rail. A safety pin is built in to each plate, so that said moving block cannot be moved unless the weight plates are in the released and settled state. A dial on a belt assembly, which drives the up / down movement of said moving block, furthers the intuitive selection means of dialing into the desired weight for training purpose.

Description

RELATED APPLICATION[0001]The present invention relates to a prior application by the same inventor. Said prior application was filed on Jun. 30, 2005, having application Ser. No. 11 / 160,621.FIELD AND BACKGROUND OF THE INVENTION[0002]The present invention relates generally to an improved design and construction of fitness training equipment wherein users can select the desired amount of weight from a stack of weight plates.[0003]Selectable amount of weight is commonly found on various fitness training equipments. A popular method is by using a central stem going down the center holes of a stack of weight plates, wherein an insertion pin can be inserted through a hole on the side of each weight plate and through the central stem, forming the point of pick-up when users are engaging in exercising, as shown in FIG. 0. All the weight plates above the point of insertion pin will be the desired total weight. When users pull the cable, all the plates below the point of insertion pin will NO...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A63B21/062
CPCA63B21/062A63B2021/0623A63B21/0628A63B21/063
Inventor CAO, GUOFANG
Owner CAO GUOFANG
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